James l



(No Model.)

J. L. 0. KING.

ANTI FRICTION MILL BUSH.

No. 248,476. Patented Oct. 18,1881.

lNVENTOR WITNESSES 4 F ATTQRNEY UNITE STATES PATENT OFFICE.

ANTI-FRICTION MILL-BUSH.

SPECIFICATION forming part of Letters Patent No. 248,476, dated October18, 1881.

' Application filed October 30, 1880. (No model.)

T 0 all whom it may concern Be it known that I, JAMES L. AndersonCourt-House, in the county of Anderson and State of South Carolina, haveinvented a new and valuable Improvement in Anti-Friction Mill-Bushes;and I do hereby declare that the following is a l'ull,clear, and ex actdescription of the construction and operation of the same, referencebeing had to the annexed drawings, making a part of this specification,and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a vertical central section of thisinvention. Fig. 2 is a plan view with spindle in section.

This invention relates to improvements in the anti-friction bushingsused in mills; and it consists in the construction and novel arrangementof parts, l1 ereinafter set forth and claimed.

Many means have been devised for furnishing roller-bearings i'orspindles; and it is the object of the present invention to so constructsuch bearings, their seats, and adjusting de vices that irregularity ofwear is corrected and a true contact obtained.

In the annexed drawings, the letter A rep resents the upper, and B thelower, millstone, the latter being supported on floor 0 and joists D.Under the lower stone, and fastened between the joists D, are thecross-sills E, in which the spindle F has its bearing. These sills E areconcaved out at opposite points, 0 e, lorming the circular opening H,through which the spindle passes. Formed at and leading outwardly fromthe periphery of this opening are the three vertical bearings for theantifriction-rollers K. These bearings are arranged around the circleequidistant one from another. They consistof upper and lower elongatedangular seats,I I, for the journals of the rollers, and an interveningconcave, 1 for the body of the rollers. Located at the extreme ends ofthe seats I I are stationary taps Z Z. and inside of these are themovable boxes ii. Passing through sills E, entering the seats I I, andpassing through taps Z Z, and bearing against boxes 6 i, are the adjusting-rods L L, by means of which the boxes are forced up.

0. KING, of

K are the rollers, which are placed, with theirjournals k 7c,in seats II, resting against g boxes i t, and their bodies k projecting part inthe concaves l and part out into the opening H. By this construction therollers are placed looselvinto position and all play is prevented. Theirbodies, extending into the concave, keep them from endwise slip bycatching against the end shoulders, Z. The spindle F passes down amidthese rollers. its collar f resting on the projecting edges of theirbodies at the journals 7;.

At the top of the lower stone there is placed around the spindle arubber or metal cap, f, which tightly closes the opening around thespindle. The location given the rollers, their bearings, and adjustingdevices, compels the adjustment in right lines, and, whether theadjustment be much or little, the distance of the rollers apart willalways be constant. The double adjustment given each roller enables thelatter to be forced up for any irregularity of Wear, either at bottom,or top, or both.

I claim 1. The cross-sills E, having spindle-opening H, and the threebearings arranged equidistant from one another and consisting of endseats, I I, and concaves 1 in combination with rollers K, havingjournalsk restingin the seats, and bodies 70 projecting partin the concaves andpart in the opening, and the spin dle F passing amid the rollers, as setforth.

2. The sills E, having opening H, and three bearings equidistant fromone another and consisting of seats I I and concaves I and boxes 71 i,stationary taps l l, and adjustingrods L L, in combination with rollersK, having journals k 70 and bodies I0 whereby the rollers have a doubleadjustment and end-play is prevented, as set forth.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

D. PRUE SLOAN, J. A. M. GARLIsLE.

